Scientists Develop Single-longitudinal-mode Pulsed Fiber Lasers with Very Narrow Linewidth[Mar 23, 2017]
In a paper published in the journal of IEEE Photonics Journal, a study team led by Prof. MAO Qinghe in Anhui Institute of Optics and Fine Mechanics (AIOFM), Hefei Institutes of Physical Science obtains highly stable mode-hopping-free single-longitudinal-mode (SLM) Q-switched laser pulses with the linewidth of only 1.5MHz, which may be the narrowest linewidth for a Q-switched fiber laser so far.
SERS Helps to Evaluate DHA Effect on Cancer Cells[Mar 23, 2017]
In a paper published in Lab on a Chip, Chinese researchers announced using Surface-enhanced Raman spectroscopy (SERS) in a microfluidic chip they managed to develop a novel method to efficiently evaluate the effect of DHA on a single cell, said the research group led by Prof. Huang Qing at Institute of Technical Biology & Agriculture Engineering, Hefei Institutes of Physical Science.
In order to understand the genetic variation for Ca and Zn accumulation in apple fruit germplasm, LIAO Liao, supervised by Prof. HAN Yuepeng from Wuhan Botanical Garden of the Chinese Academy of Sciences, assessed Ca and Zn content in mature fruits of 417 apple germplasm.
Eastern Honey Bees Have Lower Antennal Responses and Less Attracted to Queen Mandibular Pheromone[Mar 22, 2017]
Prof. TAN Ken and his team of Xishuangbanna Tropical Botanical Garden (XTBG) of the Chinese Academy of Sciences conducted a study to compare the antennal responses and worker cluster (retinue) formation behaviors of eastern honey bee workers and western honey bee workers to identical presentations of major-component QMP blends and individual QMP components.
Beijing Severe Haze More Frequent under Global Warming[Mar 22, 2017]
Conducive weather conditions are an important ingredient of severe haze episodes, which feature reduced surface winter northerlies, weakened northwesterlies in the midtroposphere, and enhanced thermal stability of the lower atmosphere. While the priority to mitigate Beijing severe haze is to effectively reduce emissions of air pollutants, the global effort in reducing greenhouse gas emissions will contribute to decreasing the risk of Beijing winter severe haze events.
Scientists Reveal Bacterial Diversity Patterns in the Semi-arid and Arid Grassland of North China[Mar 22, 2017]
Based on this conceptual framework, Dr. WANG Xiaobo, a microbial ecologists in the Institute of Applied Ecology of the Chinese Academy of Sciences, conducted a 4,000 km transect survey in China's drylands across four different habitats including alpine grassland, desert, desert grassland and typical grassland. He collected 545 soil samples in total and compared systematically the differences in the distance-decay curves of bacterial communities (at both the 97 and 99% resolutions), and in the relative importance of underlying factors (environmental variables or geographic distance) contributing to such relationships.
Chinese Academy of Sciences
Add: 52 Sanlihe Rd., Xicheng District, Beijing, China
Tel: 86-10-68597521 (day) 86-10-68597289 (night)
Fax: 86-10-68511095 (day) 86-10-68512458 (night)